[HTP-136] EMX Digital: TCF V2 updates and Liveramp uid support

[EMXDigital]

Type of Change

• New adapter
• Feature Update
• Bug Fix
• Code Refactor
• Other

Description of Change

This PR is related to adding the TCFv2 test case changes, which is still open under #198 and also additionally adding the support for liveramp uids

Related Issue

[EMXDigital]

Hi,

We are currently working to support Liveramp ID and UnifiedID 2 (UID2) in the adapter.
There is a document which shows how to retrieve the liveramp Id using the "identityData.LiveRampIp" and to retrieve the UnifiedID using the "identityData.AdserverOrgIp" objects in the returnParcels[]”
https://kb.indexexchange.com/ix_library_partners/identity/retrieving_liveramp_identifier.htm
https://kb.indexexchange.com/ix_library_partners/identity/retrieving_unifiedid_identifier.htm

BUT, there are no details on how to retrieve the UID2 identifiers, so it would be great if the below questions are answered:

1. How do we support UID2, is it similar to the above using the identityData object ?? Is there a documentation for this ?
2. Is this the correct way to support/pass the uids to the adapter??
3. Is there a test case reference for liveramp and UID2 ?? similar to the unifiedID test case which I was able to find in the below link (validateBidRequestWithUAdSrvrOrg)
   https://kb.indexexchange.com/ix_library_partners/build_adapter/test_case_reference.htm

Once these questions are answered, we would be submitting more code changes to support UID2, which can be tested in canary and later merged to master.

Thanks